Domestic Leaders interface
The Domestic Leaders interface screen is found on the seventh tab of the Domestic Management interface. This screen displays your country's Army Tradition and Naval Tradition and shows a list of your current Leaders. Between the values for the Army and Naval Tradition is your current Discipline rating which has an impact on how much damage your units do.
This is also where you can convert your ruler into a general, or recruit other leaders. The quality of these leaders depends on your Military Tradition. The general rule is that the higher tradition, the better leaders.